US9962868B2 - Device for forming foamed kneaded material and method for forming foamed kneaded material - Google Patents

Device for forming foamed kneaded material and method for forming foamed kneaded material Download PDF

Info

Publication number
US9962868B2
US9962868B2 US14/410,003 US201314410003A US9962868B2 US 9962868 B2 US9962868 B2 US 9962868B2 US 201314410003 A US201314410003 A US 201314410003A US 9962868 B2 US9962868 B2 US 9962868B2
Authority
US
United States
Prior art keywords
piston
kneaded material
open
foamed kneaded
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US14/410,003
Other languages
English (en)
Other versions
US20150197044A1 (en
Inventor
Yusuke Kato
Toshihiko Zenpo
Toshio Kanno
Hirotsune Watanabe
Tomokazu Suda
Yasutake Nagata
Masaomi Mitsutake
Takumi Maegawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sintokogio Ltd
Toyota Motor Corp
Original Assignee
Sintokogio Ltd
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sintokogio Ltd, Toyota Motor Corp filed Critical Sintokogio Ltd
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, SINTOKOGIO, LTD. reassignment TOYOTA JIDOSHA KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NAGATA, Yasutake, MAEGAWA, Takumi, MITSUTAKE, Masaomi, WATANABE, Hirotsune, SUDA, TOMOKAZU, KANNO, TOSHIO, KATO, YUSUKE, ZENPO, TOSHIHIKO
Publication of US20150197044A1 publication Critical patent/US20150197044A1/en
Application granted granted Critical
Publication of US9962868B2 publication Critical patent/US9962868B2/en
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B01F15/0237—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/235—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam
    • B01F3/04446—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7174—Feed mechanisms characterised by the means for feeding the components to the mixer using pistons, plungers or syringes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/02—Compacting by pressing devices only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/02—Compacting by pressing devices only
    • B22C15/08—Compacting by pressing devices only involving pneumatic or hydraulic mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02—Lost patterns
    • B22C7/023—Patterns made from expanded plastic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/32—Controlling equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material

Definitions

  • the present invention relates to a device for forming foamed kneaded material and a method for forming foamed kneaded material.
  • Patent Document 1 Japanese Patent Application Laid-Open (JP-A) No. 2006-289376
  • an object of the present invention is to obtain a device for forming foamed kneaded material and a method for forming foamed kneaded material that are capable of filling a pattern forming space of a mold with foamed kneaded material in a well foamed condition.
  • a device for forming foamed kneaded material includes: a mold having a pattern forming space and a fill hole; a cylinder having an internal space capable of being supplied with foamed kneaded material, the internal space communicating with the pattern forming space by connecting the cylinder to the fill hole; a piston that presses foamed kneaded material supplied into the cylinder toward the pattern forming space side of the mold; an advancing-retreating movement mechanism that is provided at the piston, and that advances or retreats the piston in a direction to press the foamed kneaded material supplied into the cylinder or in the opposite direction thereto; a gas release mechanism including a gas release hole that penetrates through the piston along a piston advancing-retreating movement direction, an open-close section that is capable of moving between a closed position that closes the gas release hole and an open position that opens the gas release hole, and an open-close drive mechanism that moves the open-close section between the closed position and the open position;
  • the cylinder communicates the internal space with the pattern forming space of the mold by connecting to the fill hole of the mold.
  • the inner side of the cylinder is capable of being supplied with the foamed kneaded material, and the foamed kneaded material supplied into the cylinder is pressed by the piston toward the pattern forming space side of the mold.
  • the piston is advanced or retreated in a direction to press the foamed kneaded material supplied into the cylinder or in the opposite direction thereto by the advancing-retreating movement mechanism, and the position of the piston in the cylinder is detected by the position detection section.
  • the gas release hole is formed piercing the piston in the piston advancing-retreating direction, and the open-close section of the gas release mechanism is moveable by the open-close drive mechanism between the closed position that closes the gas release hole and the open position that opens the gas release hole.
  • the controller controls the open-close drive mechanism such that the open-close section is disposed in the open position in cases in which it has been determined, based on a detection result of the position detection section, that the piston has not yet reached the expected position where the piston is expected to be positioned on contacting the foamed kneaded material supplied into the cylinder.
  • the controller controls the open-close drive mechanism such that the open-close section is disposed in the closed position in cases in which it has been determined, based on a detection result of the position detection section, that the piston has reached the expected position.
  • a device for forming foamed kneaded material includes: a mold having a pattern forming space and a fill hole; a cylinder having an internal space capable of being supplied with foamed kneaded material, the internal space communicating with the pattern forming space by connecting the cylinder to the fill hole; a piston that presses foamed kneaded material supplied into the cylinder toward the pattern forming space side of the mold; an advancing-retreating movement mechanism that is provided at the piston, and that advances or retreats the piston in a direction to press the foamed kneaded material supplied into the cylinder or in the opposite direction thereto; a gas release mechanism including a gas release hole that penetrates through the piston along a piston advancing-retreating movement direction, an open-close section that is capable of moving between a closed position that closes the gas release hole and an open position that opens the gas release hole, and an open-close drive mechanism that moves the open-close section between the closed position and the open position;
  • the cylinder communicates the internal space with the pattern forming space of the mold by connecting to the fill hole of the mold.
  • the inner side of the cylinder is capable of being supplied with the foamed kneaded material, and the foamed kneaded material supplied into the cylinder is pressed by the piston toward the pattern forming space side of the mold.
  • the piston is advanced or retreated in a direction to press the foamed kneaded material supplied into the cylinder or in the opposite direction thereto by the advancing-retreating movement mechanism, and the pressing force acting on the foamed kneaded material inside the cylinder is detected by the position detection section.
  • the gas release hole is formed piercing the piston in the piston advancing-retreating direction, and the open-close section of the gas release mechanism is moveable by the open-close drive mechanism between the closed position that closes the gas release hole and the open position that opens the gas release hole.
  • the controller controls the open-close drive mechanism such that the open-close section is disposed in the open position in cases in which a pressure value detected by the pressure detection section is less than the expected pressure value associated with the foamed kneaded material starting to be pressed by the piston.
  • the controller controls the open-close drive mechanism such that the open-close section is disposed in the closed position in cases in which a pressure value detected by the pressure detection section is the expected pressure value, or higher. Accordingly, first, air between the cylinder inner side and the piston is discharged from the gas release hole, and then the piston fills the foamed kneaded material into the pattern forming space of the mold with an appropriate pressing force, without the foamed kneaded material leaking out from the gas release hole.
  • a third aspect of the present invention is the device for forming foamed kneaded material according to the first aspect, wherein: a pressure detection section is provided to detect pressing force acting on the foamed kneaded material in the cylinder; and in cases in which it has been determined, based on the detection result of the position detection section, that the piston has reached the expected position, the controller controls the advancing-retreating movement mechanism such that movement of the piston is stopped in cases in which a pressure value detected by the pressure detection section is an expected pressure value associated with completion of the foamed kneaded material being pressed by the piston, or higher.
  • the pressing force acting on the foamed kneaded material in the cylinder is detected by the pressure detection section.
  • the controller controls the advancing-retreating movement mechanism such that movement of the piston is stopped in cases in which a pressure value detected by the pressure detection section is the expected pressure value associated with completion of the foamed kneaded material being pressed by the piston, or higher.
  • unnecessary pressing force accordingly does not act on the foamed kneaded material supplied into the cylinder, enabling burring to be prevented from occurring on the pattern.
  • the pressure value detected by the pressure detection section is less than the expected pressure value associated with completion of the foamed kneaded material being pressed by the piston, insufficient filling can be prevented by continuing the pressing of the piston.
  • a fourth aspect of the present invention is the device for forming foamed kneaded material according to the second aspect, wherein: a position detection section is provided at detect the position of the piston in the cylinder; and in cases in which it has been determined, based on the detection result of the position detection section, that the piston has reached an expected position where the piston is expected to be on contacting the foamed kneaded material supplied into the cylinder, the controller controls the advancing-retreating movement mechanism such that movement of the piston is stopped in cases in which a pressure value detected by the pressure detection section is an expected pressure value associated with completion of the foamed kneaded material being pressed by the piston, or higher.
  • the position of the piston inside the cylinder is detected by the position detection section.
  • the controller controls the advancing-retreating movement mechanism such that movement of the piston is stopped in cases in which a pressure value detected by the pressure detection section is the expected pressure value associated with completion of the foamed kneaded material being pressed by the piston, or higher.
  • a fifth aspect of the present invention is the device for forming foamed kneaded material according to any one of the first aspect to the fourth aspect, wherein a speed detection section is provided to detect a movement speed of the piston, and the controller controls the advancing-retreating movement mechanism such that a movement speed detected by the movement speed detection section matches a pre-set movement speed of the piston.
  • the movement speed of the piston is detected by the speed detection section.
  • the controller controls the advancing-retreating movement mechanism such that the movement speed detected by the movement speed detection section matches the pre-set movement speed of the piston.
  • the piston can accordingly be moved at a desired speed during filling the foamed kneaded material into the mold, thereby enabling the piston to be moved at a speed that enables the foamed condition of the foamed kneaded material to be maintained and at which burring is not liable to occur.
  • a sixth aspect of the present invention is the device for forming foamed kneaded material according to any one of the first aspect to the fifth aspect, wherein the controller controls the advancing-retreating movement mechanism such that a movement speed of the piston, in cases in which the open-close section is in the closed position, is slower than a movement speed of the piston in cases in which the open-close section is in the open position.
  • the controller controls the advancing-retreating movement mechanism such that the movement speed of the piston, in cases in which the open-close section is in the closed position, is slower than the movement speed of the piston in cases in which the open-close section is in the open position.
  • the processing time is shortened by the movement speed of the piston when the open-close section is in the open position (or in other words, prior to the piston contacting the foamed kneaded material) being a faster speed than the movement speed of the piston when the open-close section is in the closed position (or in other words, after the piston has contacted the foamed kneaded material).
  • the occurrence of poor filling and burring due to the filling speed being too fast is suppressed by making the movement speed of the piston when the open-close section is in the closed position (or in other words, after the piston has contacted the foamed kneaded material) to be slower than the movement speed of the piston when the open-close section is in the open position (or in other words, prior to the piston contacting the foamed kneaded material).
  • a method for forming foamed kneaded material according to a seventh aspect of the present invention is a method including: a first process in which foamed kneaded material is supplied into a cylinder; a second process in which, after the first process, in a state in which an internal space of the cylinder is communicated with a pattern forming space of a mold, a piston disposed in the cylinder is moved toward the foamed kneaded material side while opening a gas release hole formed to penetrate through the piston; a third process in which, after the second process, the gas release hole is closed at a timing when the piston has reached an expected position where the piston is expected to be positioned on contacting the foamed kneaded material supplied into the cylinder; and a fourth process in which, after the third process, the foamed kneaded material supplied into the cylinder is pressed toward the pattern forming space side of the mold by moving the piston toward the foamed kneaded material side.
  • the foamed kneaded material in the first process, is supplied into a cylinder.
  • the piston disposed in the cylinder is moved toward the foamed kneaded material side while opening the gas release hole formed to penetrate through the piston. Air between the foamed kneaded material and the piston is accordingly discharged from the gas release hole.
  • the gas release hole is closed at a timing when the piston has reached an expected position where the piston is expected to be positioned on contacting the foamed kneaded material supplied into the cylinder.
  • the foamed kneaded material supplied into the cylinder is pressed toward the pattern forming space side of the mold by moving the piston toward the foamed kneaded material side.
  • the gas release hole is closed, and so the piston fills the pattern forming space of the mold with foamed kneaded material with an appropriate pressing force without leaks occurring in the foamed kneaded material from the gas release hole.
  • a method for forming foamed kneaded material is a method including: a first process in which foamed kneaded material is supplied into a cylinder; a second process in which, after the first process, in a state in which an internal space of the cylinder is communicated with a pattern forming space of a mold, a piston disposed in the cylinder is moved toward the foamed kneaded material side while opening a gas release hole formed to penetrate through the piston; a third process in which, after the second process, the gas release hole is closed at a timing when a pressing force acting on the foamed kneaded material has reached an expected pressure value associated with the foamed kneaded material starting to be pressed by the piston; and a fourth process in which, after the third process, the foamed kneaded material supplied into the cylinder is pressed toward the pattern forming space side of the mold by moving the piston toward the foamed kneaded material side.
  • foamed kneaded material in the first process, foamed kneaded material is supplied into a cylinder.
  • the piston disposed in the cylinder is moved toward the foamed kneaded material side while opening the gas release hole formed to penetrate through the piston. Air between the foamed kneaded material and the piston is accordingly discharged from the gas release hole.
  • the gas release hole is closed at a timing when the pressing force acting on the foamed kneaded material has reached the expected pressure value associated with the foamed kneaded material starting to be pressed by the piston.
  • the foamed kneaded material supplied into the cylinder is pressed toward the pattern forming space side of the mold by moving the piston toward the foamed kneaded material side.
  • the gas release hole is closed, and so the piston fills the pattern forming space of the mold with foamed kneaded material with an appropriate pressing force without leaks occurring in the foamed kneaded material from the gas release hole.
  • a ninth aspect of the present invention is the method for forming foamed kneaded material of the seventh aspect or the eighth aspect, wherein a movement speed of the piston in the fourth process is slower than a movement speed of the piston in the second process.
  • the movement speed of the piston in the fourth process is made a slower speed than the movement speed of the piston in the second process.
  • the processing time is shortened by making the movement speed of the piston in the second process to be faster than the movement speed of the piston in the fourth process.
  • the occurrence of poor filling and burring due to the filling speed being too fast is suppressed by making the movement speed of the piston in the fourth process to be slower than the movement speed of the piston in the second process.
  • the excellent advantageous effect is exhibited of enabling a pattern forming space of a mold to be filled with foamed kneaded material in a well foamed condition.
  • FIG. 1 is a schematic vertical cross-section illustrating relevant portions of a device for forming foamed kneaded material according to a first exemplary embodiment of the present invention.
  • FIG. 2A is a schematic vertical cross-section illustrating a gas releasing state in a process of a method for forming foamed kneaded material employing a device for forming foamed kneaded material according to the first exemplary embodiment of the present invention.
  • FIG. 2B is a schematic vertical cross-section illustrating a timing at which a gas release hole is closed in a process of a method for forming foamed kneaded material employing a device for forming foamed kneaded material according to the first exemplary embodiment of the present invention.
  • FIG. 2C is a schematic vertical cross-section illustrating a state partway through filling foamed kneaded material into a pattern forming space of a mold in a process of a method for forming foamed kneaded material employing a device for forming foamed kneaded material according to the first exemplary embodiment of the present invention.
  • FIG. 2D is a schematic vertical cross-section illustrating a filled state of foamed kneaded material in a pattern forming space of a mold in a process of a method for forming foamed kneaded material employing a device for forming foamed kneaded material according to the first exemplary embodiment of the present invention.
  • FIG. 3A is a schematic vertical cross-section illustrating a cylinder and the like withdrawn to above a mold in a process of a method for forming foamed kneaded material employing a device for forming foamed kneaded material according to the first exemplary embodiment of the present invention.
  • FIG. 3B is a schematic vertical cross-section illustrating a state in which a formed pattern has been removed from a mold in a process of a method for forming foamed kneaded material employing a device for forming foamed kneaded material according to the first exemplary embodiment of the present invention.
  • FIG. 4 is schematic vertical cross-section illustrating a state in which foamed kneaded material is being supplied into a cylinder in a device for forming foamed kneaded material according to the first exemplary embodiment of the present invention.
  • FIG. 5 is schematic vertical cross-section illustrating relevant portions of a device for forming foamed kneaded material according to a second exemplary embodiment of the present invention.
  • a foamed kneaded material is a kneaded material of solid particles and a foamed liquid (also referred to as a foam aggregate mixture), and the foam aggregate mixture is indicated by symbol a in FIG. 2A to FIG. 2D , FIG. 3A , FIG. 3B , and FIG. 4 .
  • a foamed kneaded material forming device 10 includes a mold 12 .
  • the mold 12 is configured including an upper mold 12 A and a lower mold 12 B, forming a pattern forming space 14 (also referred to as a cavity).
  • a filling hole 16 is formed in the upper mold 12 A of the mold 12 , configuring an input port to the pattern forming space 14 .
  • a pressurizing unit 18 is installable above the mold 12 .
  • the pressurizing unit 18 includes a cylinder 20 .
  • an internal space 22 is formed into which it is possible to supply foamed kneaded material.
  • the cylinder 20 is connected to the filling hole 16 of the mold 12 through a thermal insulation material 24 , such that the internal space 22 is in communication with the pattern forming space 14 .
  • a fill hole 20 A 1 is formed piercing through a bottom section 20 A of the cylinder 20
  • a fill hole 24 A is also formed piercing through the thermal insulation material 24 .
  • the fill holes 20 A 1 , 24 A are set so as to be positioned above the filling hole 16 of the mold 12 .
  • a piston 26 that presses foamed kneaded material fed into the cylinder 20 toward the pattern forming space 14 side of the mold 12 is capable of being disposed inside the cylinder 20 .
  • the piston 26 is configured in a short cylindrical shape, and the internal space 22 of the cylinder 20 is partitioned by the piston 26 into two chambers, an upper and a lower chamber.
  • the piston 26 is attached to a leading end portion (lower end portion) of a rod 28 A of an advancing-retreating movement mechanism 28 (air cylinder mechanism), and the rod 28 A is disposed with its axial direction along the up-down direction.
  • a base end portion (upper end portion) of the rod 28 A is fixed to a piston 28 B.
  • the piston 28 B is capable of to-and-fro movement inside a cylinder 28 C by pneumatics (more broadly defined as fluid pressure). Namely, in the pressurizing unit 18 , the relative position of the piston 26 with respect to the cylinder 20 is variable by the piston 28 B moving to-and-fro and extending or contracting the rod 28 A.
  • An air supply source 32 is connected to the cylinder 28 C through an air direction control device (solenoid valve or the like) 30 , and the air direction control device 30 is connected to a controller 38 .
  • the controller 38 is configured, for example, with an electronic circuit including a CPU or the like, so as to be capable of controlling the movement of the piston 28 B by controlling the air direction control device 30 . Due to configuration as described above, the advancing-retreating movement mechanism 28 provided at the piston 26 is capable of advancing or retreating the piston 26 in a direction to press the foamed kneaded material supplied into the cylinder 20 (the direction toward the bottom section 20 A side), and in the opposite direction thereto.
  • a position detection sensor 34 is provided at the piston 26 as a position detection section to detect the position of the piston 26 within the cylinder 20 .
  • the position detection sensor 34 is connected to the controller 38 , and outputs a signal to the controller 38 according to the up-down direction position of the piston 26 within the cylinder 20 .
  • a speed detection sensor 36 is provided at the piston 26 as a speed detection section to detect the movement speed of the piston 26 .
  • the speed detection sensor 36 is connected to the controller 38 , and outputs a signal to the controller 38 according to the movement speed of the piston 26 .
  • the controller 38 controls the advancing-retreating movement mechanism 28 such that the movement speed detected by the speed detection sensor 36 matches a pre-set movement speed of the piston 26 .
  • a gas release mechanism 40 (air release mechanism) is provided at the piston 26 .
  • the gas release mechanism 40 is equipped with a gas release hole 40 A (air release hole) piercing through the piston 26 in its advancing-retreating direction (plate thickness direction), and an open-close plug 40 B that serves as an opening and closing section employed to open or close the gas release hole 40 A.
  • the gas release hole 40 A forms a communication path that communicates the lower side space of the piston 26 with the upper side space of the piston 26
  • the open-close plug 40 B is moveable between a closed position closing the gas release hole 40 A and an open position opening the gas release hole 40 A.
  • the open-close plug 40 B is attached to a leading end portion (lower end portion) of a rod 42 A of an open-close drive mechanism 42 (air cylinder mechanism).
  • the base end portion (upper end portion) of the rod 42 A is fixed to a piston 42 B, and the piston 42 B is capable of to-and-fro movement within a cylinder 42 C by pneumatics (more broadly defined as fluid pressure).
  • pneumatics more broadly defined as fluid pressure
  • the relative position of the open-close plug 40 B with respect to the gas release hole 40 A is variable by the piston 42 B moving to-and-fro and extending or contracting the rod 42 A.
  • the piston 42 B is connected to an air supply source 46 through an air direction control device (solenoid valve or the like) 44 , and the air direction control device 44 is connected to the controller 38 .
  • the controller 38 is configured capable of controlling the movement of the piston 42 B by controlling the air direction control device 44 . Due to configuration as described above, the open-close drive mechanism 42 provided at the open-close plug 40 B is capable of moving the open-close plug 40 B between a closed position closing the gas release hole 40 A (the position indicated in FIG. 1 ) and an open position opening the gas release hole 40 A (see FIG. 2A ).
  • the controller 38 controls the open-close drive mechanism 42 such that the open-close plug 40 B is disposed in the open position in cases in which it is determined, based on the detection result of the position detection sensor 34 , that the position of the piston 26 has not yet reached an expected position X of the piston 26 where the piston 26 is expected to contact the foamed kneaded material supplied into the cylinder 20 .
  • the controller 38 also controls the open-close drive mechanism 42 such that the open-close plug 40 B is disposed in the closed position in cases in which it is determined, based on the detection result of the position detection sensor 34 , that the position of the piston 26 has reached the expected position X.
  • the controller 38 controls the advancing-retreating movement mechanism 28 such that the movement speed of the piston 26 is decelerated when the open-close plug 40 B is in the closed position to less than the movement speed of the piston 26 when the open-close plug 40 B is in the open position.
  • a pressure detection sensor 48 is provided as a pressure detection section to the bottom section 20 A of the cylinder 20 .
  • the pressure detection sensor 48 detects the pressing force acting on the foamed kneaded material inside the cylinder 20 .
  • the pressure detection sensor 48 is connected to the controller 38 , and outputs a signal according to the pressing force acting on the foamed kneaded material inside the cylinder 20 to the controller 38 .
  • the controller 38 controls the advancing-retreating movement mechanism 28 such that the pressure value detected by the pressure detection sensor 48 matches a pre-set pressure value (for the piston 26 to press the foamed kneaded material).
  • the controller 38 controls the advancing-retreating movement mechanism 28 to stop movement of the piston 26 if the pressure value detected by the pressure detection sensor 48 is a pressure value expected when the piston 26 has completed pressing the foamed kneaded material (a pressing complete state), or higher.
  • a supply device 50 illustrated in FIG. 4 is disposed above the position of the cylinder 20 illustrated in FIG. 1 (a filling position), and at a position moved therefrom in the horizontal direction.
  • the supply device 50 is a device that supplies the foamed kneaded material a into the cylinder 20 .
  • an agitator (not illustrated in the drawings) is provided inside the cylinder 20 to obtain the foamed kneaded material inside the cylinder 20 , and material that is not foamed is supplied into the cylinder 20 from a supply device.
  • a movement mechanism is provided at the cylinder 20 .
  • the movement mechanism is configured to move the cylinder 20 between the filling position illustrated in FIG. 1 , and a supply position below the supply device 50 illustrated in FIG. 4 .
  • a known configuration may be applied to the configuration of the movement mechanism, and so detailed explanation thereof is omitted, however it is provided with a raising and lowering mechanism to raise and lower the cylinder 20 with the filling position illustrated in FIG. 1 as the lowermost position, and with a horizontal movement mechanism that horizontally moves between an uppermost position of the cylinder 20 raised by the raising and lowering mechanism (illustrated by the double dash broken lines in FIG. 4 ) and the supply position illustrated in FIG. 4 .
  • An example of a mechanism that may be applied to the raising and lowering mechanism and the horizontal movement mechanism is a mechanism including guide rails, sliders, pinions, racks, and drive motors, etc.
  • the supply device 50 supplies the foamed kneaded material a into the cylinder 20 (first process).
  • the foamed kneaded material a is initially supplied into the cylinder 20 at an amount that enables the mold 12 to be filled plural times (see FIG. 1 ). Then, a fill amount of one-time's worth of the foamed kneaded material a is replenished each time while filling the mold 12 (see FIG. 1 ) from the cylinder 20 .
  • the cylinder 20 is moved by the movement mechanism, not illustrated in the drawings, from the supply position illustrated in FIG. 4 to the filling position illustrated in FIG. 2A .
  • the fill hole 20 A 1 is formed piercing through the bottom section 20 A of the cylinder 20 , however the foamed kneaded material a is viscous and so does not leak out from the fill hole 20 A 1 .
  • the cylinder 20 is connected to the filling hole 16 of the mold 12 , and so the internal space 22 is in communication with the pattern forming space 14 of the mold 12 . Then, in a state in which the internal space 22 of the cylinder 20 is in communication with the pattern forming space 14 of the mold 12 , the piston 26 disposed inside the cylinder 20 is moved toward the foamed kneaded material a side while opening the gas release hole 40 A formed piercing through the piston 26 (second process). The air between the foamed kneaded material a and the piston 26 is thereby discharged from the gas release hole 40 A. When this occurs, the piston 26 is moved under drive force of the advancing-retreating movement mechanism 28 (see FIG. 1 ), and the position of the piston 26 in the cylinder 20 is detected by the position detection sensor 34 .
  • the open-close plug 40 B of the gas release hole 40 A is closed at a timing when the piston 26 has reached the expected position X expected as the position when the piston 26 contacts the foamed kneaded material a supplied into the cylinder 20 (third process, see arrow Y).
  • the open-close plug 40 B is moved under drive force of the open-close drive mechanism 42 (see FIG. 1 ) from the open position opening the gas release hole 40 A (see FIG. 2A ) to the closed position closing the gas release hole 40 A (see FIG. 2B ).
  • the controller 38 illustrated in FIG. 1 controls the open-close drive mechanism 42 to dispose the open-close plug 40 B in the open position, and in cases in which it is determined, based on the detection result of the position detection sensor 34 , that the piston 26 has reached the expected position X, the controller 38 controls the open-close drive mechanism 42 to dispose the open-close plug 40 B in the closed position.
  • the foamed kneaded material a supplied into the cylinder 20 is pressed to the pattern forming space 14 side of the mold 12 by moving the piston 26 to the foamed kneaded material a side (fourth process).
  • the gas release hole 40 A is closed, and so the piston 26 fills the pattern forming space 14 of the mold 12 with the foamed kneaded material a with an appropriate pressing force without leaks occurring in the foamed kneaded material from the gas release hole 40 A.
  • the movement speed of the piston 26 in the fourth process illustrated in FIG. 2C and FIG. 2D is also reduced compared to the movement speed of the piston 26 in the second process illustrated in FIG. 2A .
  • the controller 38 illustrated in FIG. 1 controls advancing-retreating movement mechanism 28 such that the movement speed of the piston 26 when the open-close plug 40 B is in the closed position to be slower than the movement speed of the piston 26 when the open-close plug 40 B is in the open position.
  • the movement speed of the piston 26 when the open-close plug 40 B is in the closed position (or in other words in the fourth process when the piston 26 has contacted the foamed kneaded material a) is made slower than the movement speed of the piston 26 when the open-close plug 40 B is in the open position illustrated in FIG. 2A (or in other words in the second process prior to the piston 26 contacting the foamed kneaded material a), and hence the occurrence of poor filling and burring due to the filling speed being too fast is suppressed, thereby enabling the surface of patterns formed to be made more uniform.
  • the movement speed of the piston 26 is detected by the speed detection sensor 36 illustrated in FIG. 1 .
  • the controller 38 controls the advancing-retreating movement mechanism 28 such that the movement speed detected by the speed detection sensor 36 matches a pre-set movement speed of the piston 26 . This thereby enables the piston 26 to be moved at the desired speed, enabling the foaming condition of the foamed kneaded material to be maintained and the piston 26 to be moved such that burrs do not readily develop while filling the foamed kneaded material into the mold 12 .
  • the pressure acting on the foamed kneaded material inside the cylinder 20 is detected by the pressure detection sensor 48 provided at the bottom section of the cylinder 20 .
  • the controller 38 controls the advancing-retreating movement mechanism 28 such that movement of the piston 26 is stopped if the pressure value detected by the pressure detection sensor 48 is the expected pressure value associated with completion of the foamed kneaded material being pressed by the piston 26 , or higher.
  • Unnecessary pressing force accordingly does not act on the foamed kneaded material supplied into the cylinder 20 , enabling burring to be prevented from occurring on the pattern.
  • the pressing of the piston 26 can be continued if the pressure value detected by the pressure detection sensor 48 is less than the expected pressure value associated with completion of the foamed kneaded material being pressed by the piston 26 , enabling insufficient filling to be prevented.
  • FIG. 3A and FIG. 3B illustrate processes after pattern forming.
  • pattern forming first, as illustrated in FIG. 3A , the pressurizing unit 18 of the cylinder 20 and so on is raised by the movement mechanism, not illustrated in the drawings. Then, finally, as illustrated in FIG. 3B , the pattern b formed by the foamed kneaded material a is removed from the mold 12 .
  • foamed kneaded material forming device 10 illustrated in FIG. 1 and the method for forming foamed kneaded material foamed kneaded material in a well foamed condition can be filled into the pattern forming space 14 of the mold 12 , enabling stable good filling to be performed.
  • the foamed kneaded material forming device 10 may be employed to discover conditions (optimum movement speed, position, and pressure of the piston 26 ) for better filling. Namely, the foamed kneaded material forming device 10 is able to find conditions to reduce filling defects and burrs from occurring while filling the foamed kneaded material into the pattern forming space 14 of the mold 12 , and is able to find filling conditions to eliminate air incorporation defects caused by the piston 26 pressing in air together with the foamed kneaded material.
  • the modified example of the first exemplary embodiment is configured similarly to the first exemplary embodiment, except in that control logic of the controller 38 differs therefrom.
  • the controller 38 of the modified example controls the open-close drive mechanism 42 so as to dispose the open-close plug 40 B in the open position.
  • the controller 38 of the modified example controls the open-close drive mechanism 42 so as to dispose the open-close plug 40 B in the closed position.
  • the gas release hole 40 A is closed by the open-close plug 40 B at a timing when the pressing force acting on the foamed kneaded material has reached the expected pressure value when pressing first starts to act on the foamed kneaded material from the piston 26 .
  • the controller 38 of the modified example also controls the advancing-retreating movement mechanism 28 so as to stop movement of the piston 26 in cases in which it is determined, based on the detection result of the position detection sensor 34 , that the piston 26 has reached the expected position X, this being the position where the piston 26 is expected to make contact with the foamed kneaded material supplied inside the cylinder 20 , and in cases in which the pressure value detected by the pressure detection sensor 48 is the expected pressure value associated with completion of the foamed kneaded material being pressed by the piston 26 is complete, or higher.
  • the modified example is also able to fill the foamed kneaded material into the pattern forming space 14 of the mold 12 in a well foamed condition.
  • FIG. 5 illustrates a schematic vertical cross-section of relevant portions of a foamed kneaded material forming device 60 according to the second exemplary embodiment.
  • the foamed kneaded material forming device 60 differs from the foamed kneaded material forming device 10 of the first exemplary embodiment (see FIG.
  • a position detection sensor 72 provided as a position detection section in place of the position detection sensor 34 (see FIG. 1 ), a speed detection sensor 74 provided as a speed detection section in place of the speed detection sensor 36 (see FIG. 1 ), and a pressure detection sensor 76 provided as a pressure detection section in place of the pressure detection sensor 48 , are respectively installed inside the advancing-retreating movement mechanism 62 (see FIG. 1 ).
  • Other configuration is substantially the same as that of the first exemplary embodiment. Substantially the same configuration portions to those of the first exemplary embodiment are allocated the same reference numerals and further explanation is omitted thereof.
  • the piston 26 is attached to the leading end portion (lower end portion) of a rod 62 A of the advancing-retreating movement mechanism 62 .
  • the structure of the advancing-retreating movement mechanism 62 is a known electric-powered cylinder mechanism and so further detailed explanation is omitted thereof, and a simplified explanation follows.
  • the rod 62 A is disposed with its axial direction along the up-down direction.
  • An upper portion of the rod 62 A is disposed inside a cylinder 62 B, and a female thread portion 62 A 1 is formed to the upper portion.
  • the female thread portion 62 A 1 of the rod 62 A meshes with a male thread portion 62 C 1 of a ball thread 62 C, and the rod 62 A is placed so as to not be relatively rotatable about the up-down direction axis with respect to the cylinder 62 B.
  • the ball thread 62 C is disposed with the axial direction in the up-down direction, and is rotatable about the axis.
  • the rod 62 A is capable of relative movement (to-and-fro movement in the up-down direction) with respect to the cylinder 62 B by rotating the ball thread 62 C inside the cylinder 62 B. Namely, the rod 62 A of the advancing-retreating movement mechanism 62 performs to-and-fro movement in the up-down direction, and the piston 26 is configured interlocked thereto so as to move in the up-down direction.
  • the advancing-retreating movement mechanism 62 is equipped with an electrically powered servomotor 64 .
  • the electrically powered servomotor 64 is employed to rotationally drive the ball thread 62 C, and the motor shaft is connected to the ball thread 62 C through a gear train 66 .
  • the electrically powered servomotor 64 is connected to a controller 70 .
  • the controller 70 is configured equipped with an electrical circuit including a CPU or the like, and the high precision control of movement of the rod 62 A enabled by controlling the electrically powered servomotor 64 .
  • the advancing-retreating movement mechanism 62 provided at the piston 26 is thereby able to cause advancing-retreating movement of the piston 26 in the direction to press the foamed kneaded material that has been supplied into the cylinder 20 (the direction toward the bottom section 20 A side), and in the opposite direction thereto.
  • the position detection sensor 72 is installed in the advancing-retreating movement mechanism 62 to detect the position of the piston 26 in the cylinder 20 .
  • the position detection sensor 72 is connected to the controller 70 and outputs a signal to the controller 70 according to the up-down direction position of the piston 26 in the cylinder 20 .
  • the speed detection sensor 74 is installed in the advancing-retreating movement mechanism 62 to detect the movement speed of the piston 26 .
  • the speed detection sensor 74 is connected to the controller 70 and outputs a signal to the controller 70 according to the movement speed of the piston 26 .
  • the pressure detection sensor 76 is installed to the advancing-retreating movement mechanism 62 to detect the pressing force acting on the foamed kneaded material in the cylinder 20 .
  • the pressure detection sensor 76 is connected to the controller 70 and outputs a signal to the controller 70 according to the pressing force acting on the foamed kneaded material in the cylinder 20 .
  • the controller 70 differs from the first exemplary embodiment in that it controls the electrically powered servomotor 64 instead of the air direction control device 30 of the first exemplary embodiment (see FIG. 1 ), and has connections to different detection sections (the position detection sensor 72 , the speed detection sensor 74 , and the pressure detection sensor 76 ), the controller 70 controls the advancing-retreating movement mechanism 62 and the open-close drive mechanism 42 with control logic that is similar to that of the controller 38 of the first exemplary embodiment (see FIG. 1 ).
  • the configuration of the present exemplary embodiment has the advantage of being able to control the position of the piston 26 with higher precision than the configuration of the first exemplary embodiment.
  • an open-close drive mechanism for an electrically powered cylinder mechanism may be provided instead of the open-close drive mechanism 42 .
  • the controller 70 may control the advancing-retreating movement mechanism 62 and the open-close drive mechanism 42 with similar control logic to the modified example of the first exemplary embodiment.
  • the advancing-retreating movement mechanism 28 illustrated in FIG. 1 is configured by an air cylinder mechanism
  • the advancing-retreating movement mechanism 62 illustrated in FIG. 5 is configured by an electric-powered cylinder mechanism; however, the advancing-retreating movement mechanism may, for example, be configured by another advancing-retreating movement mechanism, such as a hydraulic mechanism or the like.
  • the open-close drive mechanism may also, for example, be configured by an open-close drive mechanism such as a hydraulic cylinder mechanism or the like.
  • the controllers 38 , 70 illustrated in FIG. 1 and FIG. 5 determine, based on the detection result of the position detection sensor 34 , that the piston 26 has reached the expected position X where the piston 26 is expected to be positioned when contacting the foamed kneaded material supplied into the cylinder 20 .
  • the controllers 38 , 70 control the advancing-retreating movement mechanisms 28 , 62 such that movement of the piston 26 is stopped if the pressure value detected by the pressure detection sensor 48 has reached the expected pressure value for when pressing of the foamed kneaded material by the piston 26 has been completed, or higher.
  • a configuration not performing such control may be adopted.
  • the speed detection section (the speed detection sensor 36 , the speed detection sensor 74 ) is provided to detect the movement speed of the piston 26 , and such a configuration is preferable. However, it is also possible to adopt a configuration not provided with a speed detection section.
  • the controllers 38 , 70 control the advancing-retreating movement mechanisms 28 , 62 such that the movement speed of the piston 26 is slower when the open-close plug 40 B is in the closed position (the fourth process) than the movement speed of the piston 26 when the open-close plug 40 B is in the open position (the second process).
  • control logic method for forming foamed kneaded material
  • the position detection sensor 34 and the speed detection sensor 36 illustrated in FIG. 1 may be installed on the cylinder 20 , or may be installed on the rod 28 A.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Casting Devices For Molds (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Molding Of Porous Articles (AREA)
US14/410,003 2012-06-25 2013-04-11 Device for forming foamed kneaded material and method for forming foamed kneaded material Active 2034-11-06 US9962868B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012-142332 2012-06-25
JP2012142332A JP5840082B2 (ja) 2012-06-25 2012-06-25 発泡混練物の造型装置及び発泡混練物の造型方法
PCT/JP2013/060988 WO2014002578A1 (ja) 2012-06-25 2013-04-11 発泡混練物の造型装置及び発泡混練物の造型方法

Publications (2)

Publication Number Publication Date
US20150197044A1 US20150197044A1 (en) 2015-07-16
US9962868B2 true US9962868B2 (en) 2018-05-08

Family

ID=49782756

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/410,003 Active 2034-11-06 US9962868B2 (en) 2012-06-25 2013-04-11 Device for forming foamed kneaded material and method for forming foamed kneaded material

Country Status (9)

Country Link
US (1) US9962868B2 (enrdf_load_stackoverflow)
EP (1) EP2865460B8 (enrdf_load_stackoverflow)
JP (1) JP5840082B2 (enrdf_load_stackoverflow)
KR (1) KR101602093B1 (enrdf_load_stackoverflow)
CN (1) CN104395012B (enrdf_load_stackoverflow)
BR (1) BR112014032251B1 (enrdf_load_stackoverflow)
IN (1) IN2015DN00221A (enrdf_load_stackoverflow)
MX (1) MX367537B (enrdf_load_stackoverflow)
WO (1) WO2014002578A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10201920B2 (en) * 2012-12-12 2019-02-12 Lg Hausys, Ltd. Apparatus for forming polymer, comprising polymer backflow prevention portion

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6396876B2 (ja) * 2015-11-06 2018-09-26 トヨタ自動車株式会社 混練砂の充填方法及び充填装置
JP6470243B2 (ja) * 2016-10-31 2019-02-13 トヨタ自動車株式会社 中子造形装置及び中子造形方法
JP6733564B2 (ja) * 2017-01-24 2020-08-05 新東工業株式会社 鋳型造型装置
US20200269476A1 (en) * 2017-03-24 2020-08-27 Magna Seating Inc Manufacturing Method For Highly Filled Urethane Foams
CN107096406B (zh) * 2017-05-11 2023-09-15 金宝医学科技(深圳)有限公司 一种微泡沫生成装置及方法
JP6822315B2 (ja) * 2017-05-19 2021-01-27 新東工業株式会社 鋳型造型装置及び鋳型造型方法
CN112088056A (zh) 2018-05-07 2020-12-15 新东工业株式会社 湿砂模造型传感器和湿砂模造型性的评价方法
CN112334248A (zh) 2018-06-15 2021-02-05 新东工业株式会社 铸模造型装置以及铸模造型装置的控制方法
JP6841313B2 (ja) * 2019-10-07 2021-03-10 トヨタ自動車株式会社 中子造型方法
JP7567743B2 (ja) 2021-10-08 2024-10-16 トヨタ自動車株式会社 中子造形装置、及び中子造形方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995734A (en) * 1975-02-13 1976-12-07 Berg Jr Vernon R Manure transfer apparatus
US4411609A (en) * 1980-04-18 1983-10-25 Hitachi, Ltd. Apparatus for molding plastic
US5204042A (en) * 1990-08-03 1993-04-20 Northrop Corporation Method of making composite laminate parts combining resin transfer molding and a trapped expansion member
JP2004276092A (ja) 2003-03-18 2004-10-07 Toshiba Mach Co Ltd ダイカストマシンの射出装置
WO2005089984A1 (ja) 2004-03-23 2005-09-29 Sintokogio, Ltd. 鋳型造型装置およびそれに使用する金型装置
JP2006289376A (ja) 2005-04-06 2006-10-26 Sintokogio Ltd 鋳型の造型方法
WO2006134841A1 (ja) 2005-06-15 2006-12-21 Sintokogio, Ltd. 発泡性混合物の管理方法
WO2007066509A1 (ja) 2005-12-09 2007-06-14 Sintokogio, Ltd. 発泡骨材混合物の管理方法
US20100140823A1 (en) 2005-11-21 2010-06-10 Norihiro Asano Process for making molds

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1102155A (zh) * 1993-11-02 1995-05-03 利普工业股份有限公司 注射发泡成型装置
JP4148843B2 (ja) * 2003-06-06 2008-09-10 株式会社ジェイエスピー 発泡成形金型の製造方法
CN100500327C (zh) * 2004-03-23 2009-06-17 新东工业株式会社 铸模造型装置以及使用于其上的金属模具装置
US7699092B2 (en) * 2007-06-18 2010-04-20 Husky Injection Molding Systems Ltd. Metal-molding system and process for making foamed alloy
KR101149701B1 (ko) * 2008-09-01 2012-05-23 김수철 맥반석원단 제조방법
CN201769329U (zh) * 2010-09-03 2011-03-23 广德天运无纺有限公司 发泡件模压成型装置
JP2012142332A (ja) 2010-12-28 2012-07-26 Canon Anelva Corp 電子部品の製造方法

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995734A (en) * 1975-02-13 1976-12-07 Berg Jr Vernon R Manure transfer apparatus
US4411609A (en) * 1980-04-18 1983-10-25 Hitachi, Ltd. Apparatus for molding plastic
US5204042A (en) * 1990-08-03 1993-04-20 Northrop Corporation Method of making composite laminate parts combining resin transfer molding and a trapped expansion member
JP2004276092A (ja) 2003-03-18 2004-10-07 Toshiba Mach Co Ltd ダイカストマシンの射出装置
WO2005089984A1 (ja) 2004-03-23 2005-09-29 Sintokogio, Ltd. 鋳型造型装置およびそれに使用する金型装置
EP1749598A1 (en) 2004-03-23 2007-02-07 Sintokogio, Ltd. Casting mold forming apparatus and metal mold unit for use therein
JP2006289376A (ja) 2005-04-06 2006-10-26 Sintokogio Ltd 鋳型の造型方法
WO2006134841A1 (ja) 2005-06-15 2006-12-21 Sintokogio, Ltd. 発泡性混合物の管理方法
EP1897633A1 (en) 2005-06-15 2008-03-12 Sintokogio, Ltd. Method of controlling foaming mixture
US20100140823A1 (en) 2005-11-21 2010-06-10 Norihiro Asano Process for making molds
WO2007066509A1 (ja) 2005-12-09 2007-06-14 Sintokogio, Ltd. 発泡骨材混合物の管理方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10201920B2 (en) * 2012-12-12 2019-02-12 Lg Hausys, Ltd. Apparatus for forming polymer, comprising polymer backflow prevention portion

Also Published As

Publication number Publication date
EP2865460A1 (en) 2015-04-29
WO2014002578A1 (ja) 2014-01-03
BR112014032251B1 (pt) 2020-03-24
KR20150009598A (ko) 2015-01-26
MX2014015650A (es) 2015-06-17
EP2865460B8 (en) 2019-12-11
MX367537B (es) 2019-08-26
BR112014032251A2 (pt) 2017-06-27
US20150197044A1 (en) 2015-07-16
CN104395012B (zh) 2016-01-20
IN2015DN00221A (enrdf_load_stackoverflow) 2015-06-12
EP2865460A4 (en) 2016-02-24
KR101602093B1 (ko) 2016-03-09
JP5840082B2 (ja) 2016-01-06
CN104395012A (zh) 2015-03-04
JP2014004611A (ja) 2014-01-16
EP2865460B1 (en) 2019-11-06

Similar Documents

Publication Publication Date Title
US9962868B2 (en) Device for forming foamed kneaded material and method for forming foamed kneaded material
US9713892B2 (en) Injection foam molding machine
JP7032188B2 (ja) 射出成形機
KR102058621B1 (ko) 혼련 모래용 충전 방법 및 충전 장치
CN108555108B (zh) 一种三通管支管胀形成形方法
CN105689683B (zh) 压铸机
JP2016504218A (ja) 容器の製造及び充填のための装置及び方法
JP2006513066A (ja) 圧縮成形による物品の形成方法及び関連する機械設備
JP2004042126A (ja) 粉末成形方法および粉末成形装置
EP4046771A2 (en) Injection molding machine
JP5086542B2 (ja) 燃料電池用セパレータの製造方法
KR100813905B1 (ko) 분말 프레스기의 윤활장치
CN101219469A (zh) 滑动装置及该滑动装置所使用的被滑动部件
JP2000334537A (ja) 閉塞鍛造成形方法および閉塞鍛造成形装置
JP6821476B2 (ja) 閉塞鍛造装置
JP5093809B2 (ja) ディスク基板成形機およびディスク基板成形方法
CN104870122A (zh) 热室压铸机的动作方法
CN113276342A (zh) 一种旋转式注塑设备及双层塑料件的注塑方法
EP4035866B1 (en) Injection molding machine
CN207240438U (zh) 一种无机结合料抗压强度试件的成型装置
JP2579797B2 (ja) 発泡成形品の製造方法
JP2022181470A (ja) 射出成形装置、制御装置、射出成形装置の制御方法、および、樹脂成形品の製造方法
JPH11942A (ja) 射出成形装置
CN119348084A (zh) 一种薄壁塑料盒的成型设备和成型工艺
JP2007152366A (ja) 成形装置及び成形方法

Legal Events

Date Code Title Description
AS Assignment

Owner name: SINTOKOGIO, LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KATO, YUSUKE;ZENPO, TOSHIHIKO;KANNO, TOSHIO;AND OTHERS;SIGNING DATES FROM 20141028 TO 20141212;REEL/FRAME:034834/0792

Owner name: TOYOTA JIDOSHA KABUSHIKI KAISHA, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KATO, YUSUKE;ZENPO, TOSHIHIKO;KANNO, TOSHIO;AND OTHERS;SIGNING DATES FROM 20141028 TO 20141212;REEL/FRAME:034834/0792

STCF Information on status: patent grant

Free format text: PATENTED CASE

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4